/
crypto.go
139 lines (118 loc) · 3.23 KB
/
crypto.go
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// Copyright © 2019 Annchain Authors <EMAIL ADDRESS>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ogcrypto_interface
import (
"fmt"
"github.com/annchain/OG/arefactor/common/hexutil"
)
type CryptoType int8
const (
CryptoTypeEd25519 CryptoType = iota
CryptoTypeSecp256k1
)
var CryptoNameMap = map[string]CryptoType{
"secp256k1": CryptoTypeSecp256k1,
"ed25519": CryptoTypeEd25519,
}
type PrivateKey struct {
Type CryptoType
KeyBytes []byte
}
func (p *PrivateKey) ToBytes() []byte {
var bytes []byte
bytes = append(bytes, byte(p.Type))
bytes = append(bytes, p.KeyBytes...)
return bytes
}
func (p *PrivateKey) DebugString() string {
return fmt.Sprintf("privk%d:%s", p.Type, hexutil.ToHex(p.KeyBytes))
}
func (p *PrivateKey) String() string {
return hexutil.ToHex(p.ToBytes())
}
type PublicKey struct {
Type CryptoType
KeyBytes []byte
}
func (p *PublicKey) ToBytes() []byte {
var bytes []byte
bytes = append(bytes, byte(p.Type))
bytes = append(bytes, p.KeyBytes...)
return bytes
}
func (p *PublicKey) String() string {
return hexutil.ToHex(p.ToBytes())
}
func (p *PublicKey) DebugString() string {
return fmt.Sprintf("pubk%d:%s", p.Type, hexutil.ToHex(p.KeyBytes))
}
type Signature struct {
Type CryptoType
SignatureBytes []byte
}
func (p *Signature) ToBytes() []byte {
var bytes []byte
bytes = append(bytes, byte(p.Type))
bytes = append(bytes, p.SignatureBytes...)
return bytes
}
func (p *Signature) String() string {
return hexutil.ToHex(p.ToBytes())
}
func (p *Signature) DebugString() string {
return fmt.Sprintf("sig%d:%s", p.Type, hexutil.ToHex(p.SignatureBytes))
}
//
//type KyberEd22519PrivKey struct {
// PrivateKey kyber.Scalar
// Suit *edwards25519.SuiteEd25519
//}
//
//func (p *KyberEd22519PrivKey) Decrypt(cipherText []byte) (m []byte, err error) {
// return ecies.Decrypt(p.Suit, p.PrivateKey, cipherText, p.Suit.Hash)
//}
//
//func (p *PrivateKey) ToKyberEd25519PrivKey() *KyberEd22519PrivKey {
// var edPrivKey [32]byte
// var curvPrivKey [64]byte
// copy(curvPrivKey[:], p.KeyBytes[:64])
// extra25519.PrivateKeyToCurve25519(&edPrivKey, &curvPrivKey)
// privateKey, err := edwards25519.UnmarshalBinaryScalar(edPrivKey[:32])
// suite := edwards25519.NewBlakeSHA256Ed25519()
// if err != nil {
// panic(err)
// }
// return &KyberEd22519PrivKey{
// PrivateKey: privateKey,
// Suit: suite,
// }
//}
func (c CryptoType) String() string {
if c == CryptoTypeEd25519 {
return "ed25519"
} else if c == CryptoTypeSecp256k1 {
return "secp256k1"
}
return "unknown"
}
type PublicKeys []PublicKey
func (h PublicKeys) Len() int {
return len(h)
}
func (h PublicKeys) Less(i, j int) bool {
return h[i].String() < h[j].String()
}
func (h PublicKeys) Swap(i, j int) {
h[i], h[j] = h[j], h[i]
}